Pressure-operated deep-well pump.



PAUL G. KAISER. or cncaeo, inztnors.

PRESSUREjGPERATED DEEP-WELL PUMP.

l Specification of Letters Patent.

'la'tentod (let. "ifi 9 t Si.

Application filed September 26, 1912. Serial No. 722,443.

To all 'who/1n if may concern lle it known that I, PAUL G. KAISER, a citizen of the United States, and a resident of Chicago, in the county of Go'ok and State of Illinois, have invented certain new and useful lniprovenients in Pressure-Operated lLeepVell Pumps; and l do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in deep Well pumps which are operated by air underl pressure to raise the liquid to the discharge end of the pump, and refers more specifically to an improved nozzle for the lower end of the air pipe through which the air is applied to the body of liquid to raise it to the discharge end of the pump.

The invention consists in the'matters hereinafter forth and more particularly pointed out in the appended claims.

- ln thedrawings: Figure l is a diagrammatic sectional viewof a well, showing a pump therein equipped with my invention. Fig. 2 is an a-Xialsection of my' improved nozzle. Fig. 3 is a partialside elevation thereof. Fig. 4 is a transverse section on the line 4 4 ot Fig. 3. F ig.' 5 is a transverse section on the line 5 5 of Fig. l. ,'Fig. is an axial section of a nozzle, showing' a moditication. I

As shown in the drawings, l0 designates the. casing or lining of the well, and l1 designates the out-liow pipe within the casing which extends to a suitable distance into the well and is provided at its upper end with a discharge bend 12 which leads to any suitable place t'or the disposal of the liquid.

1.3 designates an air pipe arranged centrally within the out-flow pipe and provided near its lower end with a nozzle lt Amade inl accordance with my invention. The lower end or tail piece l5 of th'e air pipe extends slightly below the nozzle, but tern'iinatesI above the lower end of thc out-How pipe. Air is 'forced into the pipe 13 from a conipressor 1G of any suitable type, and preferably a receiver 17 is interposed rbetween the compressor and the air pipe to `secure a steady and uniform tiow ot air to the air pipe.

' The nozzle is shown more clearly in Q, 3 and 4v. It comprises a tube or hollow section` of appropriate lengthrand is provided at its upper and lower ends with screw-threads 20, 21, respectively, by'which to attach thereto the sections of the pipes lil and l5. The said nozzle is provided between its ends with a series of vertically spaced, annular shoulders 22, 22. These shoulders are' preferably formed at the lower, smaller ends of superposed conical .'ections 23, Q3. Arrangedat cachot said sections 23 is an annular series of air openings 25 which extend through the wall of the nozzle from the interior to" the exterior thereof. The outer ends of said openings open atv the upper tacos of the shoulders 22, as clearly indicated in Figs. i2 and et. shown in Fig. 2 the inner wall ot' the nozzle is cylindrical and the holes 25 extend inwardly at an oblique angle to the axis of the nozzle and each set of holes opens to the interior oi the nozzle a distance below the associated shoulder. The nozzle 2G shown inr Fig. G-is exteriorly shaped in a manner generally similar to that shown in Fig. Q. The inner side oil the wall, however, is conically recessed sonas'to torni a plurality oit conical sections 2T connected by the annular otl'set web portion v28 and in these onset portions are formed the openings 2f). These air openings and 25), arranged as described, constitute a plurality of verti lally spaced, annular jet openings through which the air is discharged upwardly and outwardly `from the'intcrior to. the exterior of the nozzle. The cutting away ol the outer face ot the tube section to produce the cone like por ,tions 2? and 2T providesclearance for the iets of air discharged through the openings and permits the said openings to discharge th4 ai at a short oblique angle to theaxis of the nozzle without unduly lengthening the holes or openings and weakening the nozzle. This manner of forming the'nozzle, as shown in Fig. '6, greatly decreases the length of the openings and correspondingly decreases the friction against the outflow of air troni the interior to the exterior of the nozv zle. This decrease oi" friction has the effect to increase the capacity ot' the nozzle to deliver air under a given pressure and also reduce the pressure required to deliver a given volume of air. The' construction last described also materially lightens .the nozzle, because the walls ofthe conic section are substantially the same thickness as. the web portions. However, the particular manner ot forming the jet openings irr the wall of lll@ n depending upon the height to lwhich the liqnhl is to be lifted. The nozzle lei and its tail pipe are subi'nerged in the liquid which stands in 'the well, :intl the air is discharged upwardly and outvnrdly from .the nozzle into the ouilioupipe ll. tlirmigh the series of vertically spaced, annular series of openings 25, und acts with :u1 injecting eect to lift the liquid through the, out-50W pipe il to the upper or discharge end thereof. l have 'found this nozzle'to be very efficient in practice and, in mamy/instances, have been able lo double the, capacity of n well of` given dimensions, ns compared to pumps of this general character mafie and operatoriunder the hitherto nest known practice. This increased efficiency flue to the fact that the nir is discharged uniformly sindv continuously from the nozialc und at :i large number. ot points around the nozzle, so thaty each unit of oir punlpcil. serves to littu given quantity of liquid. Therefore n maximum flow ot liquid is secured Withn minimum supply of nii' und power for pumping the nir. Heretoforc in. pumps of' this character it has been tounrl that the nir rises through the liquid in slu'gs, wiih nlternute slugs ot liquid, with the result that un unnecessary proportion of nir is pumped which (loes'not ellieiently operate to raise the liquid.

lt will be observed that the nozzle oceu` pies little more space than ih nir pipe so that it becomes practicable to usei the suine with n relatively snmll. ont-tion`y pipe with out decreasing uren for liuirl liow.

rom/rev is before started, the tail piece l5 is open Ant its lou/'er end so that any foreign material said u'eb portions and Walls ot seid conicv .section being inode ci substantially uniform thiclmess, and openings extending through said web portions from the interior to the exterior or' the nozzle.

2. ln a pressure operated, deep Well pump, the combination with en out-llow liquid pipe, and :in air pipe therein' adopted for connection :it its upper end with en air forcing device, of@ nozzle within the outtloivpipe et the .lower end of the air pipe formed with external, zinniilnrly, vertically spaced shoulders spaced by external coni@ otl'sets, saifl Well being provided with eseries of zinnulerly arranged jet openings which open at their outer ends et said shoulders, and the external contourof the nozzle following the external contour so as to thereby decrease the length ot the jet openings and materially lighten the nozzle.'

.ln testin'iony that l claim the 'foregoing niy invention l niiix my signature in the presence of tivo Witnesses, this 23rd (luy of September, A. l). 1912.

PAUL of; Kersen Witnesses l. E. Do'vvrn, li/V. L. HALL, 

